Improvement in knitting-machines



ESHORB KNITTING MACHINE.

Ig-36,373. Patented sept. 2,' 1862.

UNITED STATES PATENT OEEIcE.

EDWARD SHORE, OF CNSHOHOCKEN, PENNSYLVANIA.

IMPROVEMENT IN KNlTTlNG-MACl-HNES.

Specification forming part of Letters Patent No. 36,373, dafrd SPi-emlwl' 1562- To aZZ whom it may concern:

Be it known that I, EDWARD SHORE, vof Conshohocken, Montgomery county, Pennsylvania,'have invented an Improvement in Knitting-lVIachines; and I do hereby declare the following to be a full, clear, and exact description of the saine, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in what are known as rotary knitting machines; and my invention consistsin driving the strippen-wheel, and, if desired, the loop-wheel and landing-wheel by lneans of gearing from the main shaft of the machine, substantially as described hereinafter, so that the circular row of knitting-needles usually employed to turn the said wheels shall be relieved from that duty and from that undue strain which is liable to disarrange and in many cases break the said needles.

In addition tothe saving of expense and time required in replacing and rearranging damaged needles, my invention possesses the fur-,

ther` advantage of enabling me to use rotary k nitting-machines, which are well known to be the most economical, for producing both coarse and fancy work, in knitting which other machines ot'a more elaborate and costly nature have ,been generally used.

In order to enable othersskilled in the art to make and use my invention, I will now proceed to describe themanner of carryingit int-o eEect. y t

On reference to 'the accompanying drawings, which form apart of this specification, Figure 1 is a perspective view of a rotary knit-tingmachine with my improvements; Fig. 2, a vertical section, and Fig. 3 also avertical section, illustrating a modification vof my improvements.

On reference to Figs. I and 2, A represents the stationary frame ofthe machine; B, the driving-shaft, furnished with a bevel-wheeLC, the latter gearing into a similar wheel, a,which is secured to or. forms a part of the cylinder D. This cylinder revolves on avertical pin, E, secured to the stationary frame, and is furnished with the usual circular row of bearded needles, c.

F, Fig. 1, is the loop-wheel,7 turning on a pin on the end of the adjustable bar G, and

having the usual angular teeth for passing the thread under the beards of the needles.

II is the usual presser-wheel, I the angular toothed vlanding-wheel forlifting thethread over the beards of the needles, and K is the stripper-wheel by means of which the loops are detached from the needles.

The above mentioned parts are common to ordinary rotary knitting-machines and are too well understoodby all familiar with machines of this class to require minute description either of their construction or operation.

In rotary knitting-machines as heretofore constructed the stripping-wheel K has been turned by the revolving needles--a plan which is objectionable for the following reasons:

First, the needles are liable to be broken or disarranged bythe pressure to which they are neeessa ril y Subj ected, t-he renewal or rearrangenient of the needles and the. spoiling of the fabricv or rendering it imperfect beingv a source of constant expense and delay.I

Secondly, in knitting coarse circular work-- such as the jackets worn by artisans-there is not sufficient power in the needles to turn the stripper-wheel. The use of rotary machines,

which are well known to be the most economical, has consequently been for the most part contned to the smaller class of work, such as the legs of stockings, Snc.

Thirdly, in knitting fancy fabrics, the work being-more or less open, the needles haveto be arranged at a greater distance apart from each other than when arranged for knit-ting ordinary fabrics. `The needles are consequently more liable to yield, and the use of rota-ry Ina-v chines for fancy or openwork has been very limited.

My invention has been especially designed with the view of remcdying these defects of rotary knittingmachiues and of bringing the latter into more general use for a 4greater variety of work than that to which they have been hithertol adapted.

It will be observed on reference to Fig. 2 that the stripper-wheel K is secured to an inclined shaft, L, which turns in a bracket, M, the latter being secured to a plate, f, which forms the head of the vertical pin E. To the lower end of the inclined shaft is secured a wheel, N, having inclined teeth for gearing into teeth m, formed on the inside ofthe cylinder,

so-that as the latter revolves a determined rotary motion will be imparted to the stripperwheel. The needles being thus relieved from the usual strain will have but little liability to become broken or disarranged, the capacity of rotary knitting-machines for producing either coarse or fancy fabrics being consequently increased.- i i Althoughl I have hitherto alluded to the stripper-wheel as the main cau seof straining the needles, more orless lateral pressure i'sini-l parted to them by thelanding-whcel' Iand loopwheel E.v It will be evident that a revolving motion mayr be imparted directly from the cylinder to the landing-wheel in the same manner as thatdescribed inreference to the stripperwheel. It will also be evident that teeth may be cut on the outside of Vthe cylinder for imparting alrevolving motion to the loopwheel, the needles thereby being relieved from the strain to which they are subjected when used for driving these two wheels.

. In the modification illustrated by Fig. 3 the stripper-wheel K is arranged to turn loosely on apin on the bracket M, the latter being se-4 cured to a hollow stationary pin, X, ou which the cylinder revolves, a shaft, E, being arranged to turn within the hollow spindle, and .this shaft being furnished with a wheel, P, hav- 'furnished witha bevel-wheel, Q, which gears into a similar wheel, R, on the driving-shaft B, so that a positive rotary motion in the proper direction is imparted to the stripper-wheel without subjecting the needles tol any undue strain.

' I am 'aware that in Timothy Baileys patent of November 20, 1855, the sinking or other burrs of arotary knittingmachine are actuated by means of gear-wheels, to which motion is communicated from the Shanks of the needles, so that the points of the latter may be relieved from the friction ofthe sinker.

`I therefore limit my claim to and desire to scribing witnesses.

` EDWARD SHORE.

Witnesses:

HENRY HoWsoN, JOHN WHITE. 

